bcma: Account for variable PCI memory base/size

PCI Memory Resource start address and size are variable, dependent on
the H/W configuration.  Modify the computation of io_map_base to use the
computed values.

Signed-off-by: Nathan Hintz <nlhintz@hotmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
1 file changed